affine                  affine
atbash                  atbash
bifid_delastelle        bifid_delastelle
caesar                  caesar
nullcipher              nullcipher
playfair                playfair
polybius                polybius
railfence               railfence
scytale                 scytale
simple_substitution     simple_substitution
singlecolumn            singlecolumn
trifid_delastelle       trifid_delastelle
vigenere                vigenere
